Shuttle



SHUTTLE.

I APPLCATION HLED MM(v l0, 1920. l fi' Patented July, 1920.

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UNITEDd STATES JOHN MUCANN, OF PATERSN, NEW JERSEY.

SHUTTLE.

Specification of Letters Patent.

j Patented July 6, 1920.

Application led May l()7 1920. Serial No. 380,075.

To all fio/1,0m t may concern.'

Be it known that l, Jol-IN MCCANN, a citizen of the United States, residing at Paterson, in the county of Passaic and State of New Jersey, have invented certain 4new and useful Improvements in Shuttles, of which the following is a specification.

This invention relates to shuttles of the bow type suoli as are used in narrow-ware looms. The wett package or quill in such shuttles is supported by a spring pin or spindle which seats at one end in a socket in one side of the bow and has its other end sprung into a recess or groove in the other side of the bow.A lf the spindle becomes bowed a little too much in introducing it or' removing it it is likely to and frequently does become t'reed while the shuttle is in action, which results in injury to the warp. My object is to provide for mounting the spindle in the shuttle bow so that it may be held in the shuttle at all times under just that tension required to keep it in place, and to construct the parts involved in my Vimprovement so that the adjusting neces* sary from time to time may be readily performed and the state of adjustment eilected will be reliably maintained.

ln the accompanying drawing,

Figure l is a plan of a bow shuttle embodying my improvement, a part ol' the shut tle bow being broken away; and

Figs, 2 and 3 are sectional views, Fig. 2 being a sectional view on the line 2--2 of F ig. l and F ig. 3 a sectional view on the line 3-3 oi' F ig. 2.

a designates the shuttle having a bow structure which in the present instance com prises with the bow having the interior groove c in one side thereof and an interior hole or recess (Z bored in the other side thereof opposite the groove c, a bushing e which is secured into the recess d, prefer ably by means oi' glue or cement as indicated at y". The exposed face of the bushing is preferably liush with the inside face of the bow.

The bushing is threaded internally, as indicated at g in F ig. 3, and in it is tapped an externally threaded bearing device or screw i whose exposed end has a cross-cut to receive a screw driver, and also a central bearing recess j.

Preferably the screw 7i is held against turning in some suitable way, and since merely giving it a tight fit in the bushing would not be lasting enough in the presence of the constant vibration incident tothe travel of the shuttle l provide in the present instance a means which will have a positive and permanent action, and I arrange this means so that it is not only accessible but does not project in a wr y to be caught by the lilling wound on the quill. To this end, laterally in the bushing so as to open toward one side of the bow, and in this hole is screwed a lock screw Z having a cross-cut m in its free end to receive a screw driver. The lock screw may the bearing device li. To permit access to the lock sciew, the bow Z) formed with a cut-out reopening ii'iwardly of the bow.r

-0 is the usual spindle on which the quill is mounted. adapted to seat in the recess j, and the other end is lient ofi' iii the usual. way and adapted to be received in the groove c. I

According to my invention, if the spindle when .fitted into recess pears to the weaver not to be suiicientlv tightly held to insure its being reliably held in position, or if when the spindle is initially assembled with the shuttle it is a triiie too long, the lock screw ing device z, is adjusted by turning it one way or the other with a screw driver, and then the lock screw set back into locking engagement with the bearing device.

laving thus fully described my inveii-'QG tion, what l claim as new and desire to secure by Letters Patent is l. In combination, with a shuttle bow structure having in one side an interior groove to receive one end of the quill spin- 95 die and with such spindle having its said end received in said groove, a screwthreaded bearing device tapped into the opposite side of said structure and having a bearing re-` cess open toward the the other end oi' the spindle, said device being adjustable screw-fashion in the bow structure.

2. In combination, with a shuttle bow having in one side an interior groove to re- 105 ceive one end oi' the quill spindle and with such spindle having its said end received in said groove, an interiorly threaded bushing fixed in the opposite side of said bow and open toward said groove, and a screw- 110 threaded bearing device screwed into said bushing and having a bearing recess receivto hold the bushing a hole it' is tapped 65 be turned in against One end oi this spindle is j and groove c ap- Z is released, the beargroove and receiving ing the other end of saidspindle, said de- 'into the bushing andr having a bearing revice being adjustable screw-fashionv in the cess openingxtovvard the groove and receivbushing. ing the ,other end of the spindle, said device 3. In combination, with a shuttle bow being adjustable screw-fashion in the bush- 15 5 having in one side an interior groove to reion, and a lock-screw tapped into the busheeive one end of the quill spindle and with( ing laterally thereof and 'unpnging the bearsuch spindle having its said end received in ing device, said bow having a lateral cntsaid groove, the bow having in its other side out affording access to the',A lock-screw. a socket opening toward the groove, anin- In testimony whereof I aix my signature. 20 1o teriorly threaded bushing fixed in the socket,

av screw-threaded bearing device screwed i f JOHN MCCANN. 

